From 0d508bf39ad43aa06c9cd395dd382d8e00dfbf3a Mon Sep 17 00:00:00 2001
From: sandman <sandman>
Date: Thu, 28 Nov 2002 00:37:59 +0000
Subject: Some checks for null pixmaps (qtmail seems to create a scrollbar with

width and height == -1 when you tap "New mailbox")
---
diff --git a/noncore/styles/theme/ogfxeffect.cpp b/noncore/styles/theme/ogfxeffect.cpp
index 2071a67..90b45fe 100644
--- a/noncore/styles/theme/ogfxeffect.cpp
+++ b/noncore/styles/theme/ogfxeffect.cpp
@@ -27,9 +27,10 @@
 QPixmap& OGfxEffect::gradient(QPixmap &pixmap, const QColor &ca,
 	const QColor &cb, GradientType eff, int ncols)
 {
-	QImage image = gradient(pixmap.size(), ca, cb, eff, ncols);
-	pixmap.convertFromImage(image);
-
+	if ( !pixmap. isNull ( )) {
+		QImage image = gradient(pixmap.size(), ca, cb, eff, ncols);
+		pixmap.convertFromImage(image);
+	}
 	return pixmap;
 }
 
@@ -280,15 +281,16 @@ QPixmap& OGfxEffect::blend(QPixmap &pixmap, float initial_intensity,
 			  const QColor &bgnd, GradientType eff,
 			  bool anti_dir, int /*ncols*/)
 {
-    QImage image = pixmap.convertToImage();
-    OGfxEffect::blend(image, initial_intensity, bgnd, eff, anti_dir);
-
-	if ( pixmap. depth ( ) <= 8 )
-		image. convertDepth ( pixmap. depth ( ));
+	if ( !pixmap. isNull ( )) {
+	    QImage image = pixmap.convertToImage();
+   		OGfxEffect::blend(image, initial_intensity, bgnd, eff, anti_dir);
 
-    pixmap.convertFromImage(image);
+		if ( pixmap. depth ( ) <= 8 )
+			image. convertDepth ( pixmap. depth ( ));
 
-    return pixmap;
+	    pixmap.convertFromImage(image);
+	}	
+   	return pixmap;
 }
 
 
diff --git a/noncore/styles/theme/othemestyle.cpp b/noncore/styles/theme/othemestyle.cpp
index a820efb..98e7253 100644
--- a/noncore/styles/theme/othemestyle.cpp
+++ b/noncore/styles/theme/othemestyle.cpp
@@ -249,6 +249,9 @@ void OThemeStyle::drawBaseButton( QPainter *p, int x, int y, int w, int h,
                                   const QColorGroup &g, bool sunken, bool
                                   rounded, WidgetType type, const QBrush * )
 {
+	if ( w <= 0 || h <= 0 )
+		return;
+
 	int offset = borderPixmap( type ) ? 0 : decoWidth( type );
 	QPen oldPen = p->pen();
 
@@ -287,9 +290,10 @@ void OThemeStyle::drawBaseButton( QPainter *p, int x, int y, int w, int h,
 				p->fillRect( x + offset, y + offset, w - offset * 2, h - offset * 2,
 				             g.brush( QColorGroup::Button ) );
 		}
-		if ( borderPixmap( type ) )
+		if ( borderPixmap( type ) ) {
 			bitBlt( p->device(), x, y, scaleBorder( w, h, type ), 0, 0, w, h,
 			        Qt::CopyROP, false );
+		}
 		else
 			drawShade( p, x, y, w, h, g, sunken, rounded,
 			           highlightWidth( type ), borderWidth( type ), shade() );
--
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